Shandong Zhongjie Special Equipment (formerly Heze Boiler Factory Co., Ltd.) holds an A-grade boiler manufacturing license, A2-grade pressure vessel manufacturing license, A2-grade pressure vessel design license, B-grade boiler installation license, and GB2/Class, GC2/Class pressure pipeline installation license, as well as an electromechanical equipment installation contracting qualification. It is a member of the China Boiler and Water Treatment Association, the China Chemical Equipment Association, and the理事 member of the Shandong Equipment Manufacturing Association. The company has also passed certifications for the ISO9001 Quality Management System, ISO14001 Environmental Management System, OHSAS18001 Occupational Health and Safety Management System, and the American ASME/U2 certification.
To safely utilize liquid oxygen tanks, attention should be paid to the following aspects:
Training: Operators of liquid oxygen tanks must receive training to understand the properties of liquid oxygen, safety operating procedures, and emergency response measures. Only trained personnel are authorized to operate liquid oxygen tanks.
Safety Operating Procedures: Establish and adhere to the safety operating procedures for liquid oxygen tanks, including proper operational procedures, protective measures, and emergency response plans. Ensure operators follow the procedures to minimize accident risks.
Equipment Inspection and Maintenance: Regularly inspect the status of liquid oxygen storage tanks and related equipment, including valves, pipelines, pressure gauges, etc. Ensure the equipment is in perfect condition, and promptly repair or replace any damaged parts.
Leakage Control: Equipped with leak detection and alarm systems to promptly identify and control leaks in liquid oxygen storage tanks. In the event of a leak, immediate action should be taken to control the source of the leak and proceed with repairs.
Fire Prevention Measures: Liquid oxygen contains a high concentration of oxygen, which is prone to cause fires. Measures such as setting up fire walls around liquid oxygen storage tanks and using fire-resistant coatings are taken to prevent the occurrence and spread of fires.
Static protection: Electrostatic buildup in liquid oxygen tanks may cause sparks, increasing the risk of fire. Measures such as using static-conductive materials and anti-static equipment are taken to reduce the accumulation and release of static electricity.
Ventilation Requirements: Ensure adequate ventilation within the enclosed space of the liquid oxygen storage tank to expel gases produced by the evaporation of liquid oxygen. Avoid excessive oxygen concentration and minimize

Chengjie Special Equipment Co., Ltd. is a company engaged in the manufacturing of low-temperature liquid storage tanks. They offer a range of low-temperature liquid storage tanks in various specifications and capacities, including liquid nitrogen, liquid oxygen, and liquid argon tanks, etc.
The Zhongjie低温 liquid storage tank is constructed with high-quality materials and advanced manufacturing techniques, ensuring the tank's strength and seal integrity. The interior features special insulation materials and structural design, effectively reducing liquid evaporation loss.
The Zhongjie special-purpose low-temperature liquid storage tank features the following characteristics:
High Safety: Tanks are made of materials with excellent pressure resistance and sealing properties, suitable for safely storing low-temperature liquids.
Low evaporation loss: Insulation materials and structural design inside the tank effectively reduce the evaporation loss of the liquid, enhancing the economic efficiency of the tank.
A variety of specifications and capacities available: Zhongjie provides a range of specifications and capacities for low-temperature liquid storage tanks to meet different customer requirements.
Customized Design: According to customers' specific requirements, ZJET can offer customized design and manufacturing services to cater to various application scenarios.
Volume Manufacturing Process: Zhongjie's state-of-the-art manufacturing equipment and technical team ensure the quality and performance of the storage tanks.
In summary, ZheJie Special Equipment's low-temperature liquid storage tanks offer high safety, low evaporation loss, and a variety of specifications, making them suitable for storage and transportation needs of low-temperature liquids.

Liquid nitrogen tanks are widely used in meat freezing. Here are several main applications of liquid nitrogen tanks in meat freezing:
Quick Freezing: Liquid nitrogen tanks can provide low temperatures to rapidly freeze meat to the desired temperature. Due to the low-temperature properties of liquid nitrogen, meat temperatures can be quickly reduced in a short time, effectively preserving the quality and texture of the meat.
Chilled Storage: Liquid nitrogen tanks are suitable for long-term freezing storage of meat products. Placing meat in a liquid nitrogen tank can maintain it at low temperatures, preventing the growth of bacteria and microorganisms, and extending the shelf life of the meat.
Chilled Transportation: Liquid nitrogen tanks are suitable for the cold transport of meat products. Placing meat in a liquid nitrogen tank maintains its低温 state, ensuring the quality and freshness of the meat during transportation.
Chilled Processing: Liquid nitrogen tanks can be used for meat chilling. By exposing meat to liquid nitrogen, the surface can be quickly frozen, forming a frozen layer, thus preserving the meat's moisture and nutritional content.
Chilled Processing: Liquid nitrogen tanks can be used for meat freezing processing. Placing meat in liquid nitrogen makes it harder and crisper, facilitating cutting, slicing, and processing.
Be mindful that when using liquid nitrogen tanks for meat freezing, it's crucial to adhere to the relevant safety operation procedures and guidelines. Ensure that operators possess the necessary safety awareness and operational skills to prevent accidental incidents. Additionally, consult with food safety authorities.

Protective techniques for liquid nitrogen tanks include the following:
Wear protective gear: When operating liquid nitrogen tanks, it is mandatory to wear appropriate protective gear, including gloves, protective clothing, and non-slip shoes. This equipment protects the skin from the low temperature of liquid nitrogen and other hazards.
Avoid direct contact: Liquid nitrogen is extremely cold and can cause frostbite. Therefore, it is essential to avoid direct contact with liquid nitrogen, especially with the skin. Use tools or utensils for handling to prevent direct hand contact with liquid nitrogen.
Note ventilation: In the operational area of the liquid nitrogen storage tank, ensure adequate ventilation to expel gases produced by the evaporation of liquid nitrogen. Maintain air circulation to avoid excessive oxygen concentration, and reduce the risk of fire and explosion.
Prevent Leaks: Regularly inspect the liquid nitrogen storage tank for leaks and equip with leak detectors and alarm systems. In case of a leak, take immediate action to control and repair it. Avoid harm to personnel and the environment caused by the leakage of liquid nitrogen.
Fire Prevention Measures: Nitrogen liquid has a low boiling and freezing point, which is prone to causing fires. To prevent and contain fires, firewalls should be set up around nitrogen liquid storage tanks, and fire-resistant coatings should be used.
Static Protection: The accumulation of static electricity in liquid nitrogen tanks may cause sparks, increasing the risk of fire. Measures such as using static-conductive materials and anti-static equipment should be taken to reduce the accumulation and release of static electricity.
Regular inspections and maintenance: Conduct regular checks on the condition of liquid nitrogen tanks and related equipment, including valves, pipes, pressure gauges, etc. Ensure that the equipment is in perfect condition and promptly repair or replace any damaged parts.
Waste Gas Treatment: Liquid nitrogen tanks produce waste gas during operation, and appropriate waste gas treatment must be implemented.
Our company attaches great importance to technological innovation and research and development. We have 1 municipal-level enterprise technology center in Heze City, equipped with testing facilities for non-destructive testing, physical and chemical testing, welding testing, hydrostatic testing, and more. We have over 600 types of equipment, including CNC machine tools, X-ray flaw detectors, digital ultrasonic flaw detectors, mechanical property testing machines, chemical analyzers, spectrometers, tensile testing machines, plasma welding machines, and others. The key products and technologies we have developed, such as welding of temperature and pressure vessels, emission reduction of biomass boilers, and waste heat utilization, have successively been included in multiple Shandong Provincial Department of Industry and Information Technology science and technology projects, key projects of Shandong Province, and Heze City innovation and excellence projects. We have cumulatively obtained 27 authorized utility model patents, 16 authorized invention patents, participated in drafting 2 standards, 2 industry standards, and registered 15 trademarks. The technical team of our company, in collaboration with Professor Yajiang Li of Shandong University, has developed deep cryogenic container processing technology using the international plasma arc + wire filling argon arc welding (PAW-GTAW) technology. The provincial-level scientific and technological achievement identification shows that the technology level has reached an international standard in the field of deep cryogenic container manufacturing. Choose Zhongjie Special Equipment, and let's create brilliance together!